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Model Overview & Print Notes
⚙️ Precision Helical Gear Assembly – Modular System
Designed by KUMAWAT⁰⁰⁷ PRINTs
Functional Engineering • Modular Systems • Precision CAD
A high-precision, smooth-meshing Helical Gear Reduction Set engineered specifically for clean FDM 3D printing. The modular design features a dual-gear layout with custom keyways and matching shafts for secure, slip-free power transmission while maintaining excellent printability.
📐 Technical Specifications
- Gear Profile: 17.5° helical tooth profile for smooth, continuous load transfer and quieter operation.
- Drive System: Precision rectangular keyway design eliminates shaft slippage under torque.
- Support-Free Design: Optimized for flat-bed printing with zero supports required.
- Functional Clearance: Engineered with a 0.15 mm running clearance for reliable assembly.
🖨️ Recommended Print Settings (Bambu Lab A1)
| Parameter | Value |
|---|---|
| Compatible Printers | Bambu Lab A1 / A1 Mini / P1P / X1C |
| Build Plate | Bambu Textured PEI Plate |
| Material | PLA (Recommended: Orange & Gray for high contrast) |
| Layer Height | 0.16 mm (0.20 mm acceptable) |
| Wall Loops | 4 Walls |
| Infill | 25% Gyroid or Grid |
| Supports | None – Print all parts flat on the build plate |
🛠️ Assembly Instructions (7-Part Set)
- Prepare all components:
- 1× Large Helical Gear
- 1× Small Helical Pinion
- 2× Shafts
- 2× Rectangular Drive Keys
- Press each rectangular drive key fully into the keyway inside the gear hub.
- Align the shaft keyway with the installed key and slide the shaft into the hub until fully seated.
- Install both shaft assemblies into your frame or gearbox while maintaining proper center distance for smooth gear meshing.
⚠️ Assembly Tip: If the keyway fit is slightly tight due to filament expansion, lightly file the key or reduce your slicer's X-Y Hole Compensation by -0.05 mm for an optimal press fit.
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